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Importance of interferons in recovery from mousepox

Citation

Karupiah, G and Fredrickson, TN and Holmes, KL and Khairallah, LH and Buller, RM, Importance of interferons in recovery from mousepox, Journal of Virology, 67, (7) pp. 4214-26. ISSN 0022-538X (1993) [Refereed Article]

Copyright Statement

Copyright 1993, American Society for Microbiology

DOI: doi:10.1128/JVI.67.7.4214-4226.1993

Abstract

Gamma interferon is shown to be critical in recovery of C57BL/6 mice from mousepox. Anti-gamma interferon treatment of mice infected in the footpad with ectromelia virus resulted in enhanced spread to and efficient virus replication in the spleen, lungs, ovaries, and, especially, liver. All treated, infected mice died within a mean of 7 days, 2.5 days earlier than mice with severe combined immunodeficiency that were given a comparable infection. On the other hand, alpha interferon appeared not to have a major role in controlling virus replication in tissues examined, and beta interferon was important for virus clearance in the liver and ovaries but not the spleen. Either anti-alpha, beta interferon or anti-beta interferon antibody therapy resulted in only 25% mortality. Infected control mice survived but showed persistence of ectromelia virus at the site of infection (the footpad) and transient presence of the virus in the spleen, liver, lungs, and ovaries and in the fibroreticular but not lymphoid cells of the draining popliteal lymph node. Depletion of gamma interferon but not alpha and/or beta interferon resulted in a significant reduction in the numbers of splenic T (especially gamma delta-TCR+), B, and Mac-1+ cells, although the proportion of Mac-1+ cells in the spleen increased compared with control values. Depletion of alpha, beta, or gamma interferons did not severely affect the generation of virus-specific cytotoxic T-lymphocyte responses or natural killer cell cytolytic activity. This study, in which a natural virus disease model was used, underscores the crucial importance of gamma interferon in virus clearance at all stages of infection and in all tissues tested except the primary site of infection, where virus clearance appears to be delayed.

Item Details

Item Type:Refereed Article
Keywords:IFN-g; poxvirus; protective immunity
Research Division:Biomedical and Clinical Sciences
Research Group:Immunology
Research Field:Innate immunity
Objective Division:Health
Objective Group:Clinical health
Objective Field:Prevention of human diseases and conditions
UTAS Author:Karupiah, G (Associate Professor Guna Karupiah)
ID Code:142856
Year Published:1993
Web of Science® Times Cited:138
Deposited By:Medicine
Deposited On:2021-02-12
Last Modified:2021-05-25
Downloads:0

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